/***********************************************************************/
/* Open Visualization Data Explorer                                    */
/* (C) Copyright IBM Corp. 1989,1999                                   */
/* ALL RIGHTS RESERVED                                                 */
/* This code licensed under the                                        */
/*    "IBM PUBLIC LICENSE - Open Visualization Data Explorer"          */
/***********************************************************************/

#include <dxconfig.h>
#include "../base/defines.h"

#ifndef _ValueNode_h
#define _ValueNode_h

#include "NondrivenInteractorNode.h"

class InteractorInstance;
class NodeDefinition;
class Network;

//
// Class name definition:
//
#define ClassValueNode "ValueNode"

//
// ValueNode class definition:
//
class ValueNode : public NondrivenInteractorNode
{

 private:
  //
  // Private member data:
  //

 protected:
  //
  // Protected member data:
  //

  //
  // Get a new interactor instance for this class.
  // Derived classes can override this to allocated subclasses of
  // InteractorInstance which may be specific to the derived class.
  //
  virtual InteractorInstance *newInteractorInstance();

 public:
  //
  // Constructor:
  //
  ValueNode( NodeDefinition *nd, Network *net, int instnc );

  //
  // Destructor:
  //
  ~ValueNode();

  virtual boolean initialize();

  //
  // Determine if this node is a node of the given class
  //
  virtual boolean isA( Symbol classname );

  //
  // Returns a pointer to the class name.
  //
  const char *getClassName()
  {
    return ClassValueNode;
  }
};

#endif  // _ValueNode_h
